users@woodstock.java.net

Re: Table + AJAX

From: stuartr <stuart.russell_at_sun.com>
Date: Tue, 27 Nov 2007 05:32:04 -0800 (PST)

Sure

What happens is that I generate a table using a binding and within the table
there is a column
which is a hyper link.
I have defined an onclick to invoke a javascript function.

I also have 3 hidden variables as
<webuijsf:hidden id="var1" value="#{backingBean.var1Value}" />
<webuijsf:hidden id="var2" value="#{backingBean.var2Value}" />
<webuijsf:hidden id="var3" value="#{backingBean.var3Value}" />

 function linkClicked(row,data) {
        
        alert("User has pressed something on row "+row+" Data item "+data);
        
        newurlNode=document.getElementById("toplevelform:j_id26:var3");
        alert("Present value is "+newurlNode.text);
        
        // okay we have a drilldown on data within a panel of reports.
        rowDomNode=document.getElementById("toplevelform:j_id26:va1");
        rowDomNode.value=row;
        columnDomNode=document.getElementById("toplevelform:j_id26:var2");
        columnDomNode.value=data;
        
       
rowDomNode.refresh("toplevelform:j_id26:var1,toplevelform:j_id26:var2");
        
        // now refresh the actual new urlnode to having a new value.
        
        columnDomNode.refresh("toplevelform:j_id26:var3");
        
        newurlNode=document.getElementById("toplevelform:j_id26:var3");
        
        newurlNode.refresh(); // get the value from the back end.
        
        
        alert("THe value should have changed by now "+newurlNode.value);
        
        popupWin = window.open(newurlNode.value,'View File
Link','scrollbars,resizable,width=700,height=900,top='+((screen.height -
(screen.height/1.618)) - (500/2))+',left='+((screen.width-650)/2) );
  
     }


Now I now that the backing bean is being called as by log4j output shows
that the setter method is being invoked

public String getVar3Value() {
String rtn="INITIALVALUE";

if ( !firstTime ) {
   .....do some work...
   rtn="value from doing work";
}

return rtn;
}

Everything works all the way to the return statement. However the new value
never gets reflected in the client.
The client just stays at the initial value which was set within getVar3Value
the first time the code was called.
I have debug within the if block so I can see exactly what is getting
called, the client just never updates the value .

Also, I tried a hyperlink on the screen as per the examples within woodstock
and I expected to see the hyperlink change however, nothing happens.


Anyhelp appreciated.

Thanks

( Ps Im using nearly all of the woodstock components within this application
so im quite used to the syntax and model )







Venkatesh Babu-5 wrote:
>
> Could you show the code snippet for the ajax refresh you are doing.
> How are you updating the server side data and doing the label refresh.
>
> -Venky
>
> stuartr wrote:
>> Guys
>> Im having a problem with any of the textfield, hidden , hyperlink etc to
>> allow for ajax refresh.
>> My code has an onclick which updates the server side, and then invokes a
>> refresh on a label
>> I have on the screen. Basically, the code at the back end bean gets
>> invoked
>> to get the new value
>> for the label, and using firebug I can see the request.
>> However, nothing happens at the client side. the label just never changes
>> its value.
>>
>> Im using facelets along with my woodstock components.
>>
>>
>> Stu
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Dan Labrecque wrote:
>>
>>> The prototype was available in the Woodstock milestone builds, but is
>>> disabled for the official 4.1 release. It will be enabled again in the
>>> 4.2 milestone builds as we complete the widget.
>>>
>>> Dan
>>>
>>> Lking wrote:
>>>
>>>> Thanks Dan.
>>>>
>>>> Is this "table2" available for trying?
>>>>
>>>>
>>>>
>>>> On Nov 21, 2007 6:46 PM, Dan Labrecque <Dan.Labrecque_at_sun.com
>>>> <mailto:Dan.Labrecque_at_sun.com>> wrote:
>>>>
>>>> Not all components support this API -- please see the TLD for
>>>> supported
>>>> JavaScript features. There is a table2 component in the works
>>>> which is
>>>> fully Ajax enabled and supports the refresh feature.
>>>>
>>>> Dan
>>>>
>>>> Lking wrote:
>>>> > How can I get a client-side update with the Table component?
>>>> > I was trying something like...
>>>> >
>>>> >
>>>>
>>>> onChange="document.getElementById('form1:table1').refresh('form1:textfield1');"
>>>> >
>>>> > but it doesn't work.
>>>> >
>>>> > thanks.
>>>>
>>>>
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>>
>>
>
>
>

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